Conduit construction



Aug- 11, 1936 c. IG OTTWALD ET A1. 2,050,968

CONDUIT CONSTRUCTION Filed March 25, 1953 v 2 sheets-sheet 1 @www Y ATTORNEYS Aug. l1, 1936. c. GoTTWALD ET AL CONDUIT CONSTRUCTION FiledMarch 25, 1933 2 SheetS-Sheeb 2 ats Patented Aug. 11, 1936 UNETED STATESPATE Nr 'ortica illiam S. McLeish,

corporation of Ohio New York, to The Ric-wil Company,

N. Y., assisnors Cleveland, Ohio, a

Application Match 25, 1933, Serial No. 662,770

6 Claims.

'Ihis invention relates to conduit construction and more particularly toa construction which is 'adapted to conduits subjected to variations intemperature.

An object of the invention is to provide an improved conduitconstruction in which one or more pipes may be maintained in axialalignment within a casing and allowed to expand or contractlongitudinally.

Another object is to provide an improved conduit construction which willbe simple and rugged in construction.

Another object is to provide an improved conduit which may be easily andeconomically installed.

Other objects will hereinafter appear.

The invention will be better understood from the description of severalpractical embodiments thereof illustrated in the accompanying drawings,in which;

Figure 1 is a side elevational view partly in section showing a portionof a subterranean conduit installation;

Figure 2 is a cross-sectional view taken on the line II-II of vFigure 1to an enlarged scale;

Figure 3 is a side elevational view of the parts shown in Figure 2,parts being shown in section;

Figure 4 is a cross-sectional view taken on the line IV-IV of Figure l1to an enlarged scale;

Figure 5 is a side elevational view of the parts shown in Figure 4, someparts and some being shown in section;

Figure 6 is a view similar to Figure 2 of an installation for two pipesof diiierent diameter;

Figure 7 is a transverse view similar to Figures 2 and 6 but showing a.modified type of pipe sup- PONS;

Figure 8 is a fragmentary view similar to Figure 3, partly in section,corresponding to line VIII- VIII of Fig. 7

Figure 9 is a view similar to Figures 2, 6 and 7 but showing anotherembodiment of the invention;

Figure 10 -is a view corresponding to Figures 3 and 8. parts being shownin section, taken on line X-X of Figure 9, and

Figure 11 is a view similar to Figures 2, 6, 7 and 9 showing anotherembodiment of the invention.

Referring first to Figure 1, a conduit system is illustrated whichcomprises a row of base drain l tiles I which are a. trench.

arranged along the bottom of sections 2 of either ceramic material or ofmetal, and centrally within the casing so formed is a fluid-conductingpipe 3, the space being broken away Upon these tiles are arranged aseries.

(Cl. 13S-48) between the pipe and the casing serving to encloseheat-insulating material t. At intervals, the conduit is provided withmanholes 5 in which are positioned expansion joints 6, and intermediatethe expansion Joints the pipe 3 is anchored, so 5 that, upon an increasein temperature, it expands in both directions away from its anchorageand toward the joints 6.

One form of anchorage is illustrated in Figures 4 and 5 and consists ofa channel-shaped 10 y pipe by means of a strap 8 and bolts 9, the strap,and also the channel bar, if desired, being secured to the pipe bywelding Both ends of the channel bar extend considerably beyond `thecasing 2, passing through holes cluding the base drain I is embedded ina block 20 like. At this point,`it will be apparent that the pipe isiirmly held both against axial movement and in a central position withinthe casing.

At various points along the tioned supports for the pipe,` and in orderto maintain it in alignment within the casing, some of these supports,as shown in Figures 2 and 3, are provided with guide means. As shown inthese 'iigures, the support consists of a saddleJ-like mem- 3u ber' I3which rests upon the base drain I and which is yprovided with a rollerI4 supported by trunnions I5 resting in notches I6 upon the saddle-likemember I3. Clamped to the member I3 are two circular plates or discs I'Iheld in sub- 35 stantially parallel relation by bolts I8 and spacers I9, these discs being centrally apertured to permit conduit are posi-2.-,

passage of the pipe therethrough.

If, for instance. the distance from anchorage block I2 to manhole 5 is150 feet, one of these 40 guides will be installed about 6 feet from themanhole, and another about 3D feet from the upon such expansion asoccurs in steam or refrigeration lines.

. The conduit is surrounded at the points where the spacing devicesY areplaced with blocks of concrete 20, which anchor the casing so that ifthe spacers are forced against the same it will not be moved or broken.

In Figure 6 a saddle-like member I I3 is provided this having upwardlycurving arms IIS supporting a transverse shaft I I5 carrying two rollersIM. Two pipes I 03a and Ib are supported by 55 these rollers and passthrough spaced apertures in plates ll 1.

In Figures 7 and 8. a pipe support is illustrated formed of a plate 2 I1 having lugs 2 i 1a `which project through the casing 202 and areembedded, and thus securely held, within the concrete block 220. Thisplate is provided with two perforations to permit the passage of pipes203a and 203b, which pipes are supported upon rollers 2M carried by ashaft 2i! secured to the plate as by rivets ZIB. In Figures 9 and 10, acircular plate lll, provided with a central aperture, is secured to theexterior of. the pipe 303 by welding lli) and moves with the pipe as thelatter expands or contracts. To eliminate friction between this plateand the casing 302. a roller SIL-rotatably mounted on a shaft SI5, isprovided, this shaft being fastened as by riveting or welding to theplate SI1 and the plate being notched to accommodate the roller, asshown.

In Figure 11`the parts shown are identical to those of Figure 6excepting that the plate H1 is rovided with two U-shaped aperturesextendng to its lower edge instead of circular apertures closelysurrounding the pipes 403 and lilla. With a plate of this shape thepipes may be rst placed in position and the plate spread down over themand secured to the cradle H8. The rollers Il upon the shaft H5 supportedby the cradle prevent the downward displacement of the pipes so that theopen bottoms of the aperture do not effect the proper holding of thesepipes.

While we have described the illustrated embodiments oi our invention insome particularity, obviously many others will readily occur to thoseskilled in this art, and we do not, therefore, limit ourselves to theprecise details shown and describedbut claim as our invention allembodiments, variations and modifications thereof coming within thescope of the appended claims.

We claim:

1. A guide for conduit systems which consist of a pipe within a. casingand drainage means beneath said casing,` which comprises a supportresting upon said drainage means, a roller carried by said support andarranged to support said pipe within the casing, and a partitionextending from said pipe, a guide comprising anat plate' interposedbetween said pipe and said casing andy extending substantially theentire distance from 'the pipe to the casing above and at both sides ofthe pipe, and an antifriction support connected to said guide andengaging one of the two nrst mentioned members.

4. A conduit system comprising a iluid conducting pipe, a casingsurrounding and spaced from said pipe, and a guide comprising a at plateadapted to fit transversely within said casing and about said pipe, theplate extending substantially from the pipe to the casing at both sidesand above the pipe, and a roller pivotally mounted on said plate.

5. A guide for use in a conduit system having a fluid conducting pipewithin a casing, the guide comprising a ilat rigid sheet of shape andsize to nt substantially within and across the casing and extendingsubstantially from side to side and to substantially the to'p thereof,an aperture in said guide substantiallyfltting the'exterior of the pipe,a bearing secured to said guide, and a roller on said bearing, incontact with the underside ot said pipe. 'f

6. A guide for use in a conduit system having a fluid conducting pipewithin a casing, the guide comprising a ilat rigid sheet of shape `andsize to t substantially within and across the casing and extendingsubstantially from side to side and to substantially the top thereof, anaperture in said guide substantially tting the exterior of the pipe, abearing secured to said guide, a roller on said bearing in contact withthe bottom of said casing. f

WILLIAM S. MCLEISH. i

CHRISTIAN GO'I'I'WALD.

and-

